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The Scattering at Low Frequencies of Coastally Trapped Waves
Publisher: American Meteorological Society
Abstract: The scattering of coastally trapped waves is described in a particular low frequency limit where the fundamental results are independent of the relative importance of stratification and rotation in the dynamics. Progress ...
Low-Frequency Barotropic Scattering on a Shelf Bordering an Ocean
Publisher: American Meteorological Society
Abstract: BY restricting attention to low frequencies this note solves the problem of continental shelf waves scattered at an abrupt change in width of an exponential shelf abutting a flat open ocean. Short reflected waves are treated ...
Scattering of Shelf Waves by Islands
Publisher: American Meteorological Society
Abstract: The domain exterior to an island in a channel with topography is not simply connected and so the circulation about the island is indeterminate. Rhines shows that, in a rotating flow with a rigid lid, requiring the pressure ...
Boundary Currents, Free Currents and Dissipation in the Low-Frequency Scattering of Shelf Waves
Publisher: American Meteorological Society
Abstract: The low-frequency scattering of barotropic shelf waves is considered in the limit of small but nonzero dissipation. For a rectilinear shelf it is shown that an intense oscillatory boundary layer forms on the incident side ...
Connection Formulae and Classification of Scattering Regions for Low-Frequency Shelf Waves
Publisher: American Meteorological Society
Abstract: The scattering of shelf waves at simultaneous changes in depth, direction and width is considered. In the low-frequency limit the scattering is shown to be determined by the connection of f/h contours. The description ...
Hybrid Coastal and Interior Modes for Two-Dimensional Homogeneous Flow in a Cylindrical Ocean
Publisher: American Meteorological Society
Abstract: Flows on coastal shelves and in the deep interior ocean are often considered separately, but transport of fluid between these two regions can have important biologial or environmental consequences. This paper considers a ...
Gap-Leaping Vortical Currents
Publisher: American Meteorological Society
Abstract: A one-parameter family of exact solutions describing the bifurcation of a steady two-dimensional current with uniform vorticity near a gap in a thin barrier is found. The unsteady evolution of source-driven flows toward ...
Meanders and Eddies from Topographic Transformation of Coastal-Trapped Waves
Publisher: American Meteorological Society
Abstract: his paper describes how topographic variations can transform a small-amplitude, linear, coastal-trapped wave (CTW) into a nonlinear wave or an eddy train. The dispersion relation for CTWs depends on the slope of the shelf. ...
Direct Calculation of Low-Frequency Coastally Trapped Waves and Their Scattering
Publisher: American Meteorological Society
Abstract: A new, direct numerical method is proposed for finding the phase speeds and pressure fields of low-frequency nondispersive coastally trapped waves in a continuously stratified flow. The usual two-dimensional problem is ...
Flow Patterns and Drag in Near-Critical Flow over Isolated Orography
Publisher: American Meteorological Society
Abstract: Since early manned space flight orographically forced cloud patterns have been described in terms of the single isolated shock structure of shallow-water flow or, equivalently, compressible fluid flow. Some of these ...